[TYPO3-english] Switched domain name gives blank FE pages

[Tony Lush]

We switched a domain from dev.domain.com to domain.com in a TYPO3 4.4.2 
site that had functioned perfectly with the development domain name.

I made domain.com the domain for the home page, and redirected 
www.domain.com to http://domain.com.

When I edited the main TS template to point realURL (1.9.3) to the 
correct domain, I get a PHP Warning:

PHP Warning: Invalid argument supplied for foreach() in 
/home/amazingc/public_html/typo3conf/ext/realurl/class.tx_realurl_tcemain.php 
line 161

The domain has propagated to the new server.

Other PHP applications on the server work correctly, and static pages 
are delivered properly.

I would appreciate any suggestions.

Thank you -- Tony Lush